Question about 2002 Toyota Celica

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I have a 2002 toyota celica gts, and just recently the check engine light came on. I had my friend read the code, and it came up as 301, misfire in cylinder 1. To try and diagnose the problem, I switched coil #1, with coil #4 to see if the problem follows. About a week later, the light comes on again, the same error code 301. The next step I took was to replace the spark plugs, my car has 81k miles on it at this time. And yet again, a few days later the check engine light comes on again. Now I am thinking I should change the wires. Is this the next logical step to take, or should I go another route?

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Rotate the wires swap #1 with the "bad" one if you can, before you spend money on a new set of wires. This problem usually is caused by: either a broken sparkplug
carbon wire coreor, a mis-alined reluctor.

Posted on Jul 29, 2010

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Posted on Jan 02, 2017

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